Homeowners often start by searching for solar companies when electric bills rise or when they want a long term energy plan. A practical first step is to review a year of electric usage, because system size is usually based on how much energy the home uses over time.(Image: https://live.staticflickr.com/65535/53599656019_1d5eaae5f5.jpg)(Image: https://live.staticflickr.com/65535/54165810958_086f17aeab.jpg) It also helps to note roof age and shading, since these factors affect production and can influence equipment choices